Microwave measurements on the heavy fermion superconductors UPt{sub 3} and UBe{sub 13}
Journal Article
·
· Journal of Low Temperature Physics
- Northwestern Univ., Evanston, IL (United States); and others
The complex microwave impedance at {approximately} 11.5 GHz was measured in the superconducting state of two well characterized heavy fermion single crystals, UPt{sub 3}and UBe{sub 13}. This microwave photon energy is about 30% and 20% of the zero-temperature energy gap, respectively, and is higher than previous measurements. The results for UBe{sub 13} seem to be well described by the Mattis-Bardeen theory in the dirty-limit for a conventional superconductor. However, the behavior in UPt{sub 3} deviates from this conventional theory even when paramagnetic impurity scattering effects are taken into account.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 183424
- Report Number(s):
- CONF-950676--; CNN: Grant DMR 91-20521; Grant DMR93-09061
- Journal Information:
- Journal of Low Temperature Physics, Journal Name: Journal of Low Temperature Physics Journal Issue: 3-4 Vol. 101; ISSN JLTPAC; ISSN 0022-2291
- Country of Publication:
- United States
- Language:
- English
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